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SSS 2012-08-15

时间:2013-01-06 08:40来源:互联网 提供网友:gmeng   字体: [ ]
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    (单词翻译:双击或拖选)

 This is scientific American sixty seconds science. I'm Ian Chant. Got a minute?

 
Having a kid changes everything from your sleep schedule to the statues of that formerly1 spare room. The stable of bacteria that living in women's gut2 is also transformed when their host becomes pregnant. So finds research in the Journal Cell.
 
The study looked at women in Finland. The women's microbe makeup3 changed dramatically between the first and third trimesters. The array of microbes in the gut went from looking normal in the first three month of a pregnancy4 to resembling what's found in patients suffering from metabolic5 disease in last three. But some of the symptoms of that condition, like weight gain and slower sugar metabolism6 can be beneficial to pregnant women, supporting energy storage that helps a fetus7 develop. Other symptoms, like inflammation, demonstrate that the immune system is functioning properly as a pregnancy comes to term. Scientists don't yet fully8 understand what brings about the changes in gut bacteria. Immune function is a suspect, but factors like hormonal9 signals aren't ruled out. The research suggests that other change to the body, like puberty or old age, could also bring about microbial make-overs.

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1 formerly ni3x9     
adv.从前,以前
参考例句:
  • We now enjoy these comforts of which formerly we had only heard.我们现在享受到了过去只是听说过的那些舒适条件。
  • This boat was formerly used on the rivers of China.这船从前航行在中国内河里。
2 gut MezzP     
n.[pl.]胆量;内脏;adj.本能的;vt.取出内脏
参考例句:
  • It is not always necessary to gut the fish prior to freezing.冷冻鱼之前并不总是需要先把内脏掏空。
  • My immediate gut feeling was to refuse.我本能的直接反应是拒绝。
3 makeup 4AXxO     
n.组织;性格;化装品
参考例句:
  • Those who failed the exam take a makeup exam.这次考试不及格的人必须参加补考。
  • Do you think her beauty could makeup for her stupidity?你认为她的美丽能弥补她的愚蠢吗?
4 pregnancy lPwxP     
n.怀孕,怀孕期
参考例句:
  • Early pregnancy is often accompanied by nausea.怀孕早期常有恶心的现象。
  • Smoking during pregnancy increases the risk of miscarriage.怀孕期吸烟会增加流产的危险。
5 metabolic 2R4z1     
adj.新陈代谢的
参考例句:
  • Impressive metabolic alternations have been undergone during embryogenesis.在胚胎发生期间经历了深刻的代谢变化。
  • A number of intoxicants are associated with metabolic acidosis.许多毒性物质可引起代谢性酸中毒。
6 metabolism 171zC     
n.新陈代谢
参考例句:
  • After years of dieting,Carol's metabolism was completely out of whack.经过数年的节食,卡罗尔的新陈代谢完全紊乱了。
  • All living matter undergoes a process of metabolism.生物都有新陈代谢。
7 fetus ekHx3     
n.胎,胎儿
参考例句:
  • In the fetus,blood cells are formed in different sites at different ages.胎儿的血细胞在不同时期生成在不同的部位。
  • No one knows why a fetus is not automatically rejected by the mother's immune system. 没有人知道为什么母亲的免疫系统不会自动排斥胎儿。
8 fully Gfuzd     
adv.完全地,全部地,彻底地;充分地
参考例句:
  • The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气,然后全部呼出。
  • They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。
9 hormonal Fcpx6     
adj.激素的
参考例句:
  • Some viral diseases are more severe during pregnancy, probably tecause of hormonal changes. 有些病毒病在妊娠期间比较严重,可能是由于激素变化引起的。
  • She underwent surgical intervention and a subsequent short period of hormonal therapy. 他接受外科手术及随后短暂荷尔蒙治疗。
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